Main.hx:5: lines 5-8 : Field v has different type than in I
Main.hx:2: characters 2-29 : Interface field is defined here
Main.hx:5: lines 5-8 : error: String should be Dynamic
Main.hx:5: lines 5-8 :  have: (Dynamic) -> ...
Main.hx:5: lines 5-8 :  want: (String) -> ...